The GeV emission of PSR B1259-63 during its last three periastron passages observed by Fermi-LAT

Zhi Chang, Shu Zhang, Yu-Peng Chen +3

PSR B1259-63 is a $\gamma$-ray emitting high mass X-ray binary system, in which the compact object is a millisecond pulsar. The system has an orbital period of 1236.7 d and shows peculi…